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6 juil. 2024 · # Load HexString and automatically extend String: require 'hex_string' # Convert data to human-readable hex tuples: >> "hello".to_hex_string => "68 65 6c 6c 6f" # Compact a hex string into its data equivalent: >> "77 6f 72 6c 64".to_byte_string => "world" # (#to_byte_string is space and case-insensitive:) >> "776F726C64".to_byte_string. 23 mai 2017 · I need to convert a large binary string (a sequence of bytes) into ASCII like this table. I can also start with a hex string. I read this post: Converting binary data to string in ruby. I found a solution that converts to characters in the extended ASCII table. 5 févr. 2009 · You can do so via using base64 which is a fairly universal way. require 'base64' str = Base64.encode64 (data) Share. Follow. answered Feb 5, 2009 at 11:19. Philip Reynolds. 9,374 3 30 37. data needs to be convertible to String for this to work. 30 nov. 2024 · If you use decrypt_string and its counterpart encrypt_string it outputs it pretty easily. :) require 'rubygems' require 'crypt/blowfish' plain = "This is the plain text" puts plain blowfish = Crypt::Blowfish.new ("A key up to 56 bytes long") enc = blowfish.encrypt_string(plain) p blowfish.decrypt_string(enc) Also found this blogpost that talks. 27 déc. 2024 · puts "a b".inspect "a b". Assign the inspected version to a variable and you'll have the escaped version of the string. To undo the escaping, eval the string: puts eval ("a b".inspect) a b. I don't really like doing it this way. It's more of a curiosity than something I'd do in practice. Share. 30 mars 2024 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the company. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid . Asking for help, clarification, or responding to other answers. 7 mars 2018 · 1 Answer. Sorted by: 33. String#to_i accepts an extra argument, which is the number base to use. Hexadecimal is base 16, so the following will work for you: "01".to_i (16) Calling the Integer function on it will also work, so long as the number has an 0x prefix: Integer ("0x01") Share. 29 mai 2019 · Hexdecimal to String Convert - Ruby. I'm trying to convert hexadecimal to string using Ruby and it does not work with some Chinese characters. I am new to Ruby. Current code is working fine with non-Chinese characters but now code needs to support Chinese characters. It converts HexDecimal to string using ISO-8859-1 and UTF-8 encoder:. 12 oct. 2024 · The last two characters, in this case 80, represent a hexadecimal value that I need to convert to a its binary bits 10000000. Each bit is a flag that corresponds to a state on that piece of hardware. Each bit is a flag that corresponds to a state on that piece of hardware. 3 nov. 2024 · How can I convert a double-precision hexadecimal back into a double? For example, given the string '4045000000000000', how do I get back to the double 42.0?. 8 avr. 2009 · How do I convert a ruby float/double to high endian order hex with high bytes and low bytes. EXAMPLE: start with 99.0 end up with 40 58 C0 00 00 00 00 00 high bytes low bytes. 18 nov. 2016 · I have an array of integers that range from 0 to 255, each representing two hexadecimal digits. I want to convert this array into one hexadecimal string using Ruby. How would I do that?. 26 oct. 2015 · I came here wanting to convert between hex strings and binary data (not strings). The accepted answer is correct, because strings in Elixir are binaries, but I found it confusing that the answer uses "foo" as an example. Base.encode16/2 / Base.decode16!/2 works for all binaries, of which strings are a subset. Hex to binary:. 7 févr. 2024 · This gives you a string with the full expanded IPv6 address in hex form. The following function can then be used to convert the hex string to binary: def hex_to_bin(s_h) # convert readable hex to binary s_h.scan(/../).map { |z| z.hex.chr }.join end. 20 juin 2024 · Just add them as you would any other number. If you want to view them as Hex later then fine; format them for output. You are confusing representation with value. Ruby can parse a number represented in Hex just as well as it can parse a decimal, binary, or octal value. 0x04 (Hex) == 4 (decimal) == 100 (binary). 18 juil. 2017 · 1 Answer. You can convert it to an integer first, hinting that the string is binary ( to_i (2) ), then to hexadecimal ( to_s (16) If you need it in uppercase, you can call upcase on the resulting string. to_i (2) doesn't convert to decimal. It converts to an integer. 27 oct. 2015 · Assuming you have a well-formed hexadecimal string (pairs of hex digits), you can pack to binary, or unpack to hex, simply & efficiently, like this: string = '0123456789ABCDEF' binary = [string].pack ('H*') # case-insensitive => "\x01#Eg\x89\xAB\xCD\xEF" hex = binary.unpack ('H*').first # emits lowercase => "012345679abcdef". Share. 13 mars 2018 · I'm curious what's the best way to convert hexadecimal string to binary string in Ruby. def get_binary_string ( hex_string ) # what's the best way? end puts get_binary_string ("2F") output> "00101111". 1 juin 2015 · Viewed 30k times. 19. I have to convert a hexadecimal string to a hexadecimal integer, like this: color = "0xFF00FF" #can be any color else, defined by functions colorto = 0xFF00FF #copy of color, but from string to integer without changes. I can have RGB format too. Modified 2 years ago. Viewed 13k times. 9. I have a situation where I need to convert a binary value to hex in Ruby. My situation is as follows: When bin = "0000111", my output should be: hex = "07". When bin = "010001111", my output should be: hex = "08f". 6 juil. 2024 · converting a human-readable string of hexadecimal digits into a string of their corresponding byte values HexString came into being a few years back when my team was implementing a number of parsers and generators for a proprietary binary file format. 12 mai 2024 · Once a number is in two's complement it is dead simple to convert it to hex. In general, converting from binary to hex is very straightforward, and as you will see in the next two examples, you can go directly from two's complement to hex. Examples. Example 1: Convert 2 to Hex. 1) First convert 2 to binary in two's complement:. 27 mai 2024 · I am trying to convert a hex value to a binary value (each bit in the hex string should have an equivalent four bit binary value). I was advised to use this: num = "0ff" # (say for eg.) bin = "%0# {num.size*4}b" % num.hex.to_i. This gives me the correct output 000011111111. 7 mars 2017 · I'm trying to convert a Binary file to Hexadecimal using Ruby. At the moment I have the following: File.open (out_name, 'w') do |f| f.puts "const unsigned int modFileSize = # {data.length};" f.puts "const char modFile [] = {" first_line = true data.bytes.each_slice (15) do |a| line = a.map { |b| ",# {b}" }.join if first_line f.puts. 7 mars 2018 · 1 Answer Sorted by: 33 String#to_i accepts an extra argument, which is the number base to use. Hexadecimal is base 16, so the following will work for you: "01".to_i (16) Calling the Integer function on it will also work, so long as the number has an 0x prefix: Integer ("0x01"). Convert decimal into binary, octal, and hexadecimal? I am trying to convert a variable, which will always be a number, into binary, octal, and hex with Ruby. def convert (number) puts "# {number} in decimal is" puts "# {number.to_s (2)} in binary" puts "# {number.to_s (8)} in octal" puts "# {number.to_s (16)} in hexadecimal" end. You can use the unpack method on string pointing the target to be hex. def bin_to_hex(binary_string) binary_string.unpack('H*').first end Refer to: https://apidock.com/ruby/String/unpack. I found it to be much more clean than the solutions listed above. Convert binary data into a human-readable hex string. Whatever data is contained in the target string will be "exploded" into a sequence of hexadecimal tuples, one space between each tuple, for ease of debugging and reading. Returns a newly created string containing the hex string -- the target binary string will not be modified. Eg:. 26 janv. 2024 · Ruby provides the to_i and to_f methods to convert strings to numbers. to_i converts a string to an integer, and to_f converts a string to a float. "5".to_i # 5 "55.5".to_i # 55 "55.5".to_f # 55.5 To demonstrate this, create a small program that prompts for two numbers and displays the sum. 23 mai 2017 · 0. I need to convert a large binary string (a sequence of bytes) into ASCII like this table. I can also start with a hex string. I read this post: Converting binary data to string in ruby. I found a solution that converts to characters in the extended ASCII table. 26 avr. 2017 · I might suggest you stick to hex or base64 instead of making your own formatting. dat = [1, 0, 11, 0, 4, 0, 106, 211, 169, 1, 0, 12, 0, 8, 0, 1, 26, 25, 32, 189, 77, 216, 1, 0, 1, 0, 4, 0, 0, 0, 0, 12, 15] Hexadecimal. hex = dat.map { |x| sprintf('%02x', x) }.join. 18 juil. 2017 · 1 Answer. Sorted by: 4. You can convert it to an integer first, hinting that the string is binary ( to_i (2) ), then to hexadecimal ( to_s (16) "1010".to_i (2).to_s (16) # => 'a'. If you need it in uppercase, you can call upcase on the resulting string. Share. 25 mars 2015 · The int 011 (oct) will be 9 in decimal, the int 0x11 (hex) will be 17 in decimal and the int 0b11 (bin) will be 3 in decimal. Just use them as you would normal ints. – jakekimds Mar 25, 2015 at 2:04 2 You use a lot of list comprehensions when you don't need to. 5 févr. 2009 · 7. You can do so via using base64 which is a fairly universal way. require 'base64' str = Base64.encode64 (data) Share. Follow. answered Feb 5, 2009 at 11:19. Philip Reynolds. 9,374 3 30 37. data needs to be convertible to String for this to work. 19 févr. 2015 · In ruby the convention is to use snake_case for anything but ClassNames and CONSTANTS. When you get input from stdin ( gets) a newline is appended to it ( " " ). In most cases you want to strip the newline of using String#chomp. Accessor methods can look just like variable assignments: bc.binary_string = speak. 10 févr. 2014 · Converting a string to its numeric binary value in ruby. I am very new to ruby and am currently trying to write a simple ruby program that reads in 1 byte blocks from a file and generates a frequency list of how many times its seen each block. 26 janv. 2024 · Ruby provides the to_s method to convert any other type to a string: 25.to_s # "25" (25.5).to_s # "25.5" ["Sammy", "Shark"].to_s # " [\"Sammy\", \"Shark\"]" You’ll often convert data to strings when creating program output. Say you want to keep track of a person’s daily calorie burn after a workout. 21 oct. 2009 · You use Array#pack to convert an array of e.g. numbers into a binary string which you can then write to a file. If you already have a string, you don't need to pack. You use unpack to convert such a binary string back to an array after reading it from a file (or wherever). 30 nov. 2024 · Here's two approaches to encoding binary data: require 'rubygems' require 'crypt/blowfish' plain = "This is the plain text" puts plain blowfish = Crypt::Blowfish.new ("A key up to 56 bytes long") enc = blowfish.encrypt_string (plain) hexed = '' enc.each_byte { |c| hexed. 1 juin 2024 · import Crypto from Crypto.Cipher import Blowfish from base64 import b64encode, b64decode bs = Blowfish.block_size key = 'jaas is the way' plaintext = b'27038292d345798947e2852756afcf0a' iv = '\0' * 8 c1 = Blowfish.new(key, Blowfish.MODE_ECB) c2 = Blowfish.new(key, Blowfish.MODE_CBC, iv) c3 = Blowfish.new(key, Blowfish.MODE_CFB, iv. 18 juil. 2016 · Here is a basic code of encryping and decrypting a message: #include #include #include //gcc cryptage.c -o cryptage -lcrypto int main () { BF_KEY *key = malloc (sizeof (BF_KEY)); unsigned char *crypt_key = "Key of encryption"; const unsigned char *in = "Message to encrypt"; int len = strlen. require 'rubygems' require 'crypt/blowfish' plain = "This is the plain text" puts plain blowfish = Crypt ::Blowfish. new ( "A key up to 56 bytes long" ) enc = blowfish. encrypt_string (plain) p blowfish. decrypt_string (enc) Also found this blogpost that talks about speed concerns using the Crypt library, added just for reference. :). Step 1: Convert each of the binary numbers to their decimal equivalent. Step 2: Look up the decimal number from the ASCII table to figure out what letter or punctuation mark it is assigned to. Step 3: The letters acquired at the end show the ASCII text for the given binary number. Binary to ASCII Text Conversion Examples. 29 déc. 2009 · Depending on your machine you can try piping your strings through. iconv -f utf-8 -t ascii//translit (or whatever your encoding is, if it's not utf-8). 22 févr. 2015 · 1 Well for a starter a bit better description. I have no idea what you mean by Binary to ASCII. One is a number representation system the other is a character encoding format I have no idea what you mean when you convert one to the other. You could probably solve the situation with an example. – Martin York Feb 22, 2015 at 2:51. 30 mars 2024 · Closed 11 years ago. Possible Duplicate: Hex to binary in ruby. In Python, I can do the following: >>> str = '000E0000000000' >>> str.decode ('hex') '\x00\x0e\x00\x00\x00\x00\x00'. 17 sept. 2008 · Is there a built in way to convert an integer in Ruby into its hexadecimal equivalent? Something like the opposite of String#to_i: "0A".to_i(16) #=>10 Like perhaps: "0A".hex #=>10 I know how to roll my own, but it's probably more efficient to use a built in Ruby function. ruby pack and hex values. A nibble is four bits. That means there are 16 (2^4) possible values. That means a nibble corresponds to a single hex digit, since hex is base 16. A byte is 2^8, which therefore can be represented by 2 hex digits, and consequently 2 nibbles. 3 avr. 2024 · Converting a hexadecimal digest to base64 in Ruby. I have a string representation of a MD5 hex digest for a file, that I want to convert to base64 in order to use the Content-MD5 HTTP header when uploading it. 27 oct. 2024 · In Ruby, you can use the Kernel#Integer method or the String#to_i method to convert a hexadecimal string to its integer equivalent. For example, you can do the following: Convert Hexadecimal String With the 0x Radix Indicator; Convert Hexadecimal String Without a Radix Indicator. Convert Hexadecimal String With the 0x Radix Indicator. 7 mars 2018 · Convert hex to decimal in Ruby. I have hex numbers, and I want to convert them into decimal numbers. For example, 01 -> 1, 09 -> 9, 12 -> 18. but that failed. That is not what I want. 22 juil. 2014 · Converting an integer to a hexadecimal string in Ruby (5 answers) Closed 10 years ago. I have code as below: x = readsomevalue (); print x. The printed value is an integer. I want this in hex but, The integer which is returned (x) is having leading 0 in it (ex. 0543676). for this the standard method fails. x.to_s (16) = 0. 27 oct. 2015 · Assuming you have a well-formed hexadecimal string (pairs of hex digits), you can pack to binary, or unpack to hex, simply & efficiently, like this: string = '0123456789ABCDEF' binary = [string].pack('H*') # case-insensitive => "\x01#Eg\x89\xAB\xCD\xEF" hex = binary.unpack('H*').first # emits lowercase => "012345679abcdef". Il y a 1 jour · How do i convert a U1.8 number from hex to decimal? I saw many different ways each one results in a different answer - which is the correct one? Even when trying to ask chatGPT each iteration results in a different answer (for the same input number). binary. 29 mai 2019 · I'm trying to convert hexadecimal to string using Ruby and it does not work with some Chinese characters. I am new to Ruby. Current code is working fine with non-Chinese characters but now code needs to support Chinese characters. It converts HexDecimal to string using ISO-8859-1 and UTF-8 encoder:. 15 nov. 2024 · Lately, I've been struggling to search online for ways to convert hexadecimal strings into hexadecimal actuals. As an example, "0xffffffff" -> 0xffffffff. After loading the JSON file (which cannot store hexadecimal directly), the stored integer value, 4294967295, was successfully converted back to "0xffffffff" by using the following. 12 oct. 2024 · Another option for decoding hex in Python is to use the decode method: data = "026219AAF80F440206025019AAF816A944274480".decode("hex") the last two characters form the last byte, which can be accessed with data[-1] . 16 sept. 2024 · In this example, we first define the hexadecimal string, then use `bytes.fromhex()` to create a bytes object, and finally, we decode it into a string using the UTF-8 encoding. Method 2: Using List Comprehension. Another way to convert a hexadecimal string to a string in Python is by using list comprehension. This method gives you. 2 mai 2024 · May 1, 2024 at 6:39 You should probably be using the inbuilt binascii module for this. ( stackoverflow.com/a/1425500/10534470) – eshaan7 May 1, 2024 at 15:00 1 @furas what makes you say that? The code is as complete as can be expected, and works. – Reinderien May 2, 2024 at 4:16. If you have a decoded str and want to quickly get a representation of its escaped Unicode literal, then you can specify this encoding in .encode (): Python. >>> alef = chr(1575) # Or "\u0627" >>> alef_hamza = chr(1571) # Or "\u0623" >>> alef, alef_hamza ('ا', 'أ') >>> alef.encode("unicode-escape") b'\\u0627' >>> alef_hamza.encode("unicode. 21 sept. 2024 · It takes the hex string x, first of all concatenates a "0" to the left (for the uneven case), then reverses the string, converts every char into a 4-bit binary string, then collects all uneven indices of this list, zips them to all even indices, for each in the pairs-list concatenates them to 8-bit binary strings, reverses again and joins them. 26 sept. 2008 · 449. I am looking for a way to convert a long string (from a dump), that represents hex values into a byte array. I couldn't have phrased it better than the person that posted the same question here. But to keep it original, I'll phrase it my own way: suppose I have a string "00A0BF" that I would like interpreted as the. How to convert hexadecimal representation of data to binary data in PHP? I'm familiar with php's function bin2hex () for converting binary data to its hexadecimal representation. However, what is the complement function to convert the hexadecimal representation of the data back to binary data?. 25 mars 2024 · The constructor takes two string arguments to specify the symbols to be used for the source and target number bases. The first character in the string has value 0, the 2nd has value 1, and so on. Example: the symbols for an octal number base are typically "01234567", and for hexadecimal "0123456789ABCDEF". I'm not just converting numbers, but converting an array of numbers. Binary string - groups of 4 digits & then convert them to hex. Octal string - groups of 3 digits & then convert them to hex. ASCII string - byte equivalent for each character & then convert that to hex. So length isn't the issue. 27 juin 2015 · You first convert the hexadecimal to integer (which you appear to have done, with your "In theory" equation). You then convert the integer to decimal. You then convert the integer to decimal. There are lots of ways to do either of these tasks, strtol and scanf will convert either hexadecimal or decimal to integer. 18 nov. 2016 · The actual binary hexadecimal string is already returned by pack ('C*'): unpack ('H*') then converts it back to a human readable representation. A light-weight alternative is sprintf -style formatting via String@% which takes an array: x means hexadecimal number and 02 means 2 digits with leading zero. Method 1: Using the Array#map method The Array#map method allows us to iterate over each element of an array and transform it based on a given block of code. We can use this method to convert each integer in the list into its hexadecimal representation. list = [10, 20, 30, 40] hex_string = list.map { |num| num.to_s (16) }.join ('') puts hex_string. Conversion methods in Ruby: to_s, to_i, to_str, to_a, etc. These methods allow you to convert integers to strings, strings to integers, etc. Examples included. Ruby. Today I learned that you can easily convert a number to its hex value by calling to_s on it along with the base you want to convert as a parameter on to_s. 170.to_s(16) => "aa". Copy. Of course this means you can also convert it to binary (base 2) 170.to_s(2) => "10101010". 26 oct. 2015 · I came here wanting to convert between hex strings and binary data (not strings). The accepted answer is correct, because strings in Elixir are binaries, but I found it confusing that the answer uses "foo" as an example. Base.encode16/2 / Base.decode16!/2 works for all binaries, of which strings are a subset. To use this binary to hex conversion tool, you must type a binary value like 11011011 into the left field below and hit the Convert button. The converter will give you the hexadecimal (base-16) equivalent of the given value. Binary to hex conversion result in base numbers 0 Binary System. 6 nov. 2024 · 1 Find a line of up to four binary numbers to convert. Binary numbers can only be 1 and 0. Hexadecimal numbers can be 0-9, or A-F, since hexadecimal is base-16. You can convert any binary string to hexadecimal (1, 01, 101101, etc.), but you need four numbers to make the conversion (0101→5; 1100→C, etc.). 5 déc. 2024 · (1) Convert the binary number 111000 to hexa-decimal. (2) Convert the binary number 100100001 to hexa-decimal. (3) Convert the binary number 1001001111 to hexa-decimal. (4) What is the binary equivalent of hexa-decimal number A7C5. (5) What is the binary equivalent of hexa-decimal number 2A.FF. 7 févr. 2024 · It's not the most elegant solution, I'm sure, but seems to work for me: my_ip = IPAddr.new ('fe80::c').to_i.to_s (16) This gives you a string with the full expanded IPv6 address in hex form. The following function can then be used to convert the hex string to binary:.